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<meta name="description" content="##JavaScrpt就是一门动态类型、面向对象的脚本语言 ##Node.js也是脚本  不管哪种脚本，实现的功能都差不多，只是语法不同 Bash就是一个脚本命令 Windows受文件后缀影响 linux不收文件后缀名影响 PATH就是将命令保存起来 node对应bash   ##开始12345cd ~/Desktopmkdir democd demoecho &amp;quot;hi&amp;quot; &amp;gt">
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          <h1 class="post-title" itemprop="name headline">学习脚本</h1>
        

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        <p>##JavaScrpt就是一门动态类型、面向对象的脚本语言</p>
<p>##Node.js也是脚本</p>
<ul>
<li>不管哪种脚本，实现的功能都差不多，只是语法不同</li>
<li>Bash就是一个脚本命令</li>
<li>Windows受文件后缀影响</li>
<li>linux不收文件后缀名影响</li>
<li>PATH就是将命令保存起来</li>
<li><strong>node对应bash</strong></li>
</ul>
<hr>
<p>##开始<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">cd ~/Desktop</span><br><span class="line">mkdir demo</span><br><span class="line">cd demo</span><br><span class="line">echo &quot;hi&quot; &gt; index.html</span><br><span class="line">cd ~/Desktop</span><br></pre></td></tr></table></figure></p>
<p>用bash的脚本命令完成上面这些操作<br>1.首先创建一个目录local，然后新建一个文件，后缀无所谓，一般脚本的文件格式是<code>.sh</code><br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">mkdir ~/local</span><br><span class="line">cd ~/local</span><br><span class="line">touch demo.txt</span><br></pre></td></tr></table></figure></p>
<p>2.编辑 demo.txt，内容如下：<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">mkdir demo</span><br><span class="line">cd demo</span><br><span class="line">mkdir css js</span><br><span class="line">touch index.html css/style.css js/main.js</span><br><span class="line">exit</span><br></pre></td></tr></table></figure></p>
<hr>
<p>##然后<br>在任意位置执行 <code>sh ~/local/demo.txt</code>即可运行此脚本</p>
<p>#####当然为了方便，可以把它添加到PATH里<br>1.<code>cd ~/local; pwd</code>得到 local 的绝对路径<br>2.创建 ~/.bashrc：<code>touch ~/.bashrc</code>(这一步相信之前你在命令行的使用中已经创建了)<br>3.编辑<code>~/.bashrc：start ~/.bashrc</code>，在最后一行添加<code>export PATH=&quot;local的绝对路径:$PATH&quot;</code><br>4.<code>source ~/.bashrc</code><br>5.之前你要运行 <code>sh ~/local/demo.txt</code>，现在你只需要运行<code>demo.txt</code>就行了</p>
<hr>
<p>#node.js的命令与bash的对比<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br></pre></td><td class="code"><pre><span class="line">fs.mkdirSync(&quot;./&quot; + dirName) // mkdir $1</span><br><span class="line">process.chdir(&quot;./&quot; + dirName) // cd $1</span><br><span class="line">fs.mkdirSync(&apos;css&apos;) // mkdir css</span><br><span class="line">fs.mkdirSync(&apos;js&apos;) // mkdir js</span><br><span class="line"></span><br><span class="line">fs.writeFileSync(&quot;./index.html&quot;, &quot;&quot;)</span><br><span class="line">fs.writeFileSync(&quot;css/style.css&quot;, &quot;&quot;)</span><br><span class="line">fs.writeFileSync(&quot;./js/main.js&quot;, &quot;&quot;)</span><br><span class="line">process.exit(0) // exit 0</span><br></pre></td></tr></table></figure></p>
<hr>
<p>##下面用 JS 脚本来重写 demo.sh<br>1.创建 ~/local/jsdemo.js，内容如下</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br></pre></td><td class="code"><pre><span class="line"> var fs = require(&apos;fs&apos;)</span><br><span class="line"></span><br><span class="line"> var dirName = process.argv[2] // 你传的参数是从第 2 个开始的</span><br><span class="line"></span><br><span class="line"> fs.mkdirSync(&quot;./&quot; + dirName) // mkdir $1</span><br><span class="line"> process.chdir(&quot;./&quot; + dirName) // cd $1</span><br><span class="line"> fs.mkdirSync(&apos;css&apos;) // mkdir css</span><br><span class="line"> fs.mkdirSync(&apos;js&apos;) // mkdir js</span><br><span class="line"></span><br><span class="line"> fs.writeFileSync(&quot;./index.html&quot;, &quot;&quot;)</span><br><span class="line"> fs.writeFileSync(&quot;css/style.css&quot;, &quot;&quot;)</span><br><span class="line"> fs.writeFileSync(&quot;./js/main.js&quot;, &quot;&quot;)</span><br><span class="line"></span><br><span class="line"> process.exit(0)</span><br><span class="line">``</span><br></pre></td></tr></table></figure>
<p>2.cd ~/Desktop<br>3.node ~/local/jsdemo.js zzz，就可以看到 zzz 目录创建成功了</p>

      
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